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Cisco CRS-1 Carrier Routing System SIP and SPA Hardware Installation Guide
OL-7113-05
Chapter 3 Overview: Cisco CRS-1 Shared Port Adapters
2-Port and 4-Port OC-48c/STM-16 POS/RPR SPA Overview
Table 3-8 describes the 2-Port and 4-Port OC-48c/STM-16 POS/RPR SPA LEDs.
2-Port and 4-Port OC-48c/STM-16 POS/RPR SPA Interface Specifications
The physical layer interface for the 2-Port and 4-Port OC-48c/STM-16 POS/RPR SPA is Optical
Carrier-48 (OC-48), and provides SONET and SDH network connectivity with a per-port bandwidth of
2.488 Gbps.
Each port on the 2-Port and 4-Port OC-48c/STM-16 POS/RPR SPA has one duplex LC-type receptacle
that allows connection to single-mode optical fiber.
2-Port and 4-Port OC-48c/STM-16 POS/RPR SPA Cables, Optical Transceiver
Modules, and Connectors
Use single-mode (for intermediate-reach configurations) optical fiber cable to connect your router to a
network or to connect two OC-48-equipped routers back-to-back.
Ta b l e 3-8 2-Port and 4-Port OC-48c/STM-16 POS/RPR SPA LEDs
LED Label Color State Meaning
PTH Off Off Port is not in pass-through mode.
Amber On Port is in pass-through mode.
CAR Off Off Port is not enabled by software.
Green On Port is enabled by software, and there is a valid
SONET signal without any alarms.
Amber On Port is enabled by software, and there is at least
one alarm.
Amber Flashing Port is enabled by software, and there is a side
mismatch.
PRT Off Off Port is not wrapped or steering.
Green On A node on the ring is wrapped.
Green Flashing A node on the ring is steering.
Amber On Port is locally wrapped.
Amber Flashing Port is locally steering.
ACT Off Off Port is not enabled by software.
Green On Port is enabled by software, and loopback is off.
Amber On Port is enabled by software, and loopback is on.
STATUS Off Off SPA power is off.
Green On SPA is ready and operational.
Amber On SPA power is on and good, and the SPA is being
configured.